Finding the Fourth Proportional to 98,569,159.80, 147,853,739.70 and 73,059,991.80
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Solution
The fourth proportional to 98,569,159.80, 147,853,739.70 and 73,059,991.80 is: 109,589,987.70
Step by Step Solution
- Step 1: Write the proportion equation
98,569,159.80 : 147,853,739.70 = 73,059,991.80 : x - Step 2: Convert to fraction form
98,569,159.80/147,853,739.70 = 73,059,991.80/x - Step 3: Cross multiply
98,569,159.80x = 147,853,739.70 × 73,059,991.80 - Step 4: Simplify right side
98,569,159.80x = 10,802,193,010,081,334 - Step 5: Solve for x
x = 10,802,193,010,081,334/98,569,159.80 - Step 6: Final answer
x = 109,589,987.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.